Re: Intel compiler with Athlon
Ed Hill <[email protected]>
| Newsgroups | gmane.comp.lib.mtl.devel |
|---|---|
| Message-ID | <[email protected]> |
On Sun, 2003-02-23 at 01:25, Michael Meyer wrote: > Does anyone have any experience how well mtl code from > the Intel compiler runs on Athlon processors? Hi Michael, Which compiler? GCC will produce reasonably fast floating-point code (inc. MTL-derived) on the PII, PIII, and Athlon chips. The floating point (x87) implementation on the P4 is *rotten* and gives really poor (per clock) performance using GCC with pretty much any floating point code. To get good floating point performance on the P4 you have to (1) use the Intel compilers and (2) have code that will map well to the SSE/SSE2 instruction set. For those reasons (and because the AMD Athlons provide excellent price/performance) we don't allow the purchase of P4 systems in our lab. hth, Ed -- Edward H. Hill III, PhD Post-Doctoral Researcher | Email: [email protected], [email protected] Division of ESE | URLs: http://www.eh3.com Colorado School of Mines | http://cesep.mines.edu/people/hill.htm Golden, CO 80401 | Phones: 303-384-2094, 303-273-3483 _______________________________________________ This list is archived at http://www.osl.iu.edu/MailArchives/mtl-devel/
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